One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,11)(4,9)(5,13)(6,7)(8,12)(10,16)(14,15)(17,18)(19,22)(20,25)(21,26)(23,24)(27,32)(28,30)(29,31)(33,34,40,44)(35,41,46,48)(36,42,37,39)(38,43,45,47)(2,7)(4,15)(8,11)(10,13)(17,19,23,27)(18,22,24,32)(20,28,29,21)(25,30,31,26)(33,35,40,46)(34,41,44,48)(36,47,37,43)(38,39,45,42)(2,7)(3,12)(9,14)(10,13)(18,24)(19,27)(20,29)(26,30)(33,36,40,37)(34,42,44,39)(35,43,46,47)(38,41,45,48)(1,3,6,12)(2,8,7,11)(4,10,15,13)(5,14,16,9)(17,20)(18,25)(19,28)(21,27)(22,30)(23,29)(24,31)(26,32)(33,37,40,36)(34,39,44,42)(35,43,46,47)(38,41,45,48)(1,4)(2,9)(3,13)(5,11)(6,15)(7,14)(8,16)(10,12)(17,21,23,28)(18,26,24,30)(19,29,27,20)(22,31,32,25)(33,38)(34,43)(35,39)(36,41)(37,48)(40,45)(42,46)(44,47)(1,5,6,16)(2,10,7,13)(3,14,12,9)(4,8,15,11)(17,22)(18,27)(19,24)(20,30)(21,25)(23,32)(26,29)(28,31)(33,39)(34,36)(35,45)(37,44)(38,46)(40,42)(41,47)(43,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.